Παραπομπή APA

Woodget, B. W., & Cooper, D. (1991). Samples and standards: :analytical chemistry by open learning. John Wiley.

Παραπομπή Chicago Style

Woodget, Brian W., και Derek Cooper. Samples and Standards: :analytical Chemistry by Open Learning. Singapore: John Wiley, 1991.

Παραπομπή MLA

Woodget, Brian W., και Derek Cooper. Samples and Standards: :analytical Chemistry by Open Learning. John Wiley, 1991.